The Brief
The owner wanted to take his naturally aspirated 86 to the next level with forced induction. The brief was a reliable turbo setup that could be driven daily and pushed on weekends, strong power on stock internals with room to grow later on E85.
The Build
The full HKS GTIII-RS V2 bolt-on turbo kit went in as the foundation. It’s a well-engineered, proven kit for this platform with good spool characteristics and a complete package out of the box. Turbo manifold, heat-wrapped dump pipe, dual resonated front pipe, and front-mount intercooler were all fitted.
To support the fueling demands of boost, Injector Dynamics ID1050xds injectors, a DeatschWerks DW300C fuel pump, an Omni Power 4 bar MAP sensor, and HKS spark plugs went in alongside. A Zeitronix flex fuel kit was included for E85 capability down the track. The HKS oil cooler is one we consider essential on any boosted 86/BRZ as it keeps oil temps under control during spirited driving and track use. The car was tuned on our Dynapack with a street tune built around reliability on stock internals, optimising boost, fueling, and throttle response on 98.
The Result
The car made 240kW at the wheels on 98, a strong result on stock internals with room to grow on E85. Spool from the GTIII-RS is quick and power delivery is smooth across the rev range. Thermal management is sorted with the oil cooler and heat-wrapped dump pipe keeping everything in check. A proper transformation from NA to turbo that’s still reliable enough to drive every day.
